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md-cluster: update document for raid10

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Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Guoqing Jiang 2017-10-24 15:11:53 +08:00 committed by Shaohua Li
parent fc33060ba0
commit f0e230ad87
3 changed files with 6 additions and 4 deletions
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3
Documentation/md/md-cluster.txt
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@ -1,4 +1,5 @@
The cluster MD is a shared-device RAID for a cluster.
The cluster MD is a shared-device RAID for a cluster, it supports
two levels: raid1 and raid10 (limited support).
1. On-disk format

5
drivers/md/Kconfig
View file

@ -178,7 +178,7 @@ config MD_FAULTY
config MD_CLUSTER
tristate "Cluster Support for MD (EXPERIMENTAL)"
tristate "Cluster Support for MD"
depends on BLK_DEV_MD
depends on DLM
default n
@ -188,7 +188,8 @@ config MD_CLUSTER
nodes in the cluster can access the MD devices simultaneously.
This brings the redundancy (and uptime) of RAID levels across the
nodes of the cluster.
nodes of the cluster. Currently, it can work with raid1 and raid10
(limited support).
If unsure, say N.

2
drivers/md/md-cluster.c
View file

@ -1478,7 +1478,7 @@ static struct md_cluster_operations cluster_ops = {
static int __init cluster_init(void)
{
pr_warn("md-cluster: EXPERIMENTAL. Use with caution\n");
pr_warn("md-cluster: support raid1 and raid10 (limited support)\n");
pr_info("Registering Cluster MD functions\n");
register_md_cluster_operations(&cluster_ops, THIS_MODULE);
return 0;